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The population of Clarkston was 7,161 at the 2020 census. Walla Walla Community College opened a branch campus in Clarkston that serves the surrounding area. Clarkston's ZIP code, 99403, is the highest numerically in the contiguous United States.
ZIP Code 99403 is located in Clarkston Washington. Portions of 99403 are also in Clarkston Heights-Vineland and West Clarkston-Highland and Asotin. 99403 is primarily within Asotin County, with some portions in Garfield County. Regionally, it is located in the Spokane Area.
4 days ago · ZIP Code 99403 is located in the city of Clarkston, Washington and covers 143.492 square miles of land area. ZIP Codes cross county lines, and 99403 is primarily assigned to Asotin County. However, is also covers mailboxes located in Garfield County. According to the 2020 U.S. Census, there are 20,224 people in 8,521 households.
ZIP Code 99403 is located in the county of Asotin in the state of Washington. 99403 ZIP Code is spread between the coordinates of +46.4003324 Latitude and -117.06805553 Longitude. 99403 ZIP Code is part of the 509 area code. There is 1 postal office in zip code 99403.
Clarkston, WA is a city located in Asotin County, Washington and has a land area of 143.49 square miles (371.64 km2). The water area for the city is 1.37 square miles or 3.55 km2. There is one unique zip code in Clarkston, Washington and it is 99403. The area code(s) for Clarkston is 509.
ZIP Code 99403: Basic Data & USPS Preferred City Name. Preferred Name, USPS. Clarkston, WA 99403. ZIP Code Type: STANDARD. County: Asotin County. Centroid: Latitude 46.398, Longitude -117.067. Time Zone: Pacific Time Zone (UTC -8 hours) Observes DST: Yes. ZIP Code 99403 has segments in 2 Counties (Asotin, Garfield).
Clarkston, WA 99403 boundary map. Evaluate Demographic Data Cities, ZIP Codes, & Neighborhoods Quick & Easy Methods!
